Valve



Aug. 25, 1931. E s. K1N@ y 1,820,075

VALVE Filed Nov. 26, 1929 SSheetS-Sheet 2 A Homey Patented Aug. 25, 1931 UNITED STATES EDWARD s. KING, or KANSAS CITY, Missionar VALVE v Y Application 1aed November 26, i929; serial'No. 409,883.l l

This invention appertains to new and useful improvements in valves, and more particularly to a valve for the distribution of Water in cities and hydraulic power plants,

in crude oil pipe lines, and diverse other uses.

The principal obj ect of this invention is to provide a valve capable of fully or partially opening or closing in response to a slight movement of its control, either through the 1,) agency of motive power or manual actuation.

During the course of the following speciication and claim, other important objects and advantages of the invention will readily become apparent to the reader.

In the drawings:

Figure 1 represents a side elevational view of the novel valve unit.

Figure 2 represents a top plan view of the 2o valve unit.

Figure 3 represents a cross sectional view though the valve unit taken substantially on line 3--3 of Figure 2.

Figure 4 represents a fragmentary detail sectional view.

Figure 5 represents a fragmentary horizontal sectional view through the valve structure showing the rotary elements in open position. so Figure 6 represents a fragmentary side elevational view of one of the rotary elements.

Figure 7 represents a horizontal sectional view through the valve unit showing the roelements in closed position.

eferring to the drawings, wherein like numerals designate like parts, it can be seen that the invention includes an ovate-shaped casing 5' o-pen at its top and bottom sides. Headers 6 and 7 are provided at the top and bottom sides of the casing and are secured against the casing by bolts 8. Projecting from opposite sides of the ovate casing 5 are the inwardly tapering pipe extensions 9-9, each flanged at its outer end as at 10. On the inner side of the casing 5 adjacent one of the pipe extensions 9 are shoulders 12-12 which serve as sto-ps for the valve elements when the valve is in its maximum wide open position.

'bearings 13 on the header 7 are-preferably Each header has a pair of bearings 13H13 projecting outwardly therefrom and projecting upwardly through each vertically aligned'pair of bearings is ashaft 14. The

closed at their outer ends while the bearings 13 on the upper headers 6 are open at their outer ends so as to permit the shafts 14 to project upwardly. Packing elements 15 circumscribe the shaft 14 atthe open ends of the bearings 13 of the upper header 6 and screws land nuts 16 and '17 respectively serve to secure this packing in place, as in the manner clearly shown.

'lhewupperv end of each shaft'14 is provided with a iiat worm wheel 18 for mesh with the worm 19 on the shaft '20. This shaft 2O is journalled through the bearings 21e-21 which are also located upon the upper Vheader .6 and this shaft is provided with a handwheel 22 at oney end so that the same may be rotated, which in turn obviously rotates theworm gears 184-18 and their corresponding shafts 14.

As is clearly shown in Figure 5, a pair of lrotary rolls 23-23 are located within the` ovate casing 5in rolling contact with each other and snugly fitting within the endsy of ythe casing. Each of these rolls is secured to 'one of the shafts 14v and-each of the rolls has a strip 24 securedlongitudinally thereto by :means of screws 25. Oneedge of eachV strip protrudesbeyond'the peripheries of its corresponding -roll sok as to abut one-of" the shoulders 12 when the roll is in open posi- -85 tion, as shown in Figure 5, and which are adapted to abut each other when the rolls are in closed position, as shown in Figure 7 These strips serve' as a complete and positive non-leakable valve seat when the valve is in closed position. Y

Each of the rolls 23 is provided with a groove which extends substantialy one-half the distance around the circumference of the 95 roll and which is 'shaped in the manner shown in Figure 5 sov that when the rolls are in open position, the combinedgrooves form a" circular orifice, and this orifice may be g changed in size to vary the amount of water 300 passing therethrough by the operating means stated. v

It will thus be seen that the opening between the two valve elements may he cons'trioted or enlarged to regulate the flow through a minimum movement of the valve element. It Will valso be observed that the strip on. the rolls when abutting the shoulders, limits the movement of the rollsand when they are brought into Contact With each other (see Fig. 7 they perform as a seat to prevent passage of Water through the valvev structure. A rotation of only of the cyl l inders operating eoneurrentlyis required sin moving the cylinders from a Closed to a maximii-rn opengposition or vice versa;YV Y

Y Vhilefthe foregoing specification setsforth theinvention in detail., it is torbe understood that various y Changes; in shape, sizel and Inaterials maybe resorted to YWithout" departing romlthe spirit' `andscopef ofthe invention as v Claimed.. i v f Having thusdescrbedsthe invention, what 'Iclaimasnevvds:` 'l A, valve comprising an ovatefshaped z casing, a' pair of rotary valve elements. mounted Within i the said easing and in .rollingl contact .with eaehA other,l each ofsaid rolls `being provided With a ciroumferentially,:extending groove inits :peripheryLWhich grooves `register; With each other A'When the valves-,fare r0- tated to .forma passage Communicating the 'l inlet; and outlet ofsthe: easing, means for simultaneously operating'fthe. said: rolls, a pair of stop shoulders formed on the internal vWall i of.: the casingy and; eaeh,rol1er,hav,ing a wtransverse groovethereiniat an endofithe rstgroove anda strip astened'insaid )transfverse groove and having its edge remote :from :I

the lend; of the circii'm.ferenftigallv grooves projecting from the peripheryofithe roll for .enfgagfing.- the;I shoulder` to prevent the rolls 'being rotated beyond Q aV position Where Y the :grooves in-the rollsregisterzwith eaohpther, said strips fcontactng; each: other f when the rolls are moved' into positionto close the Y passage Wherehyrsaid gstripsr aet. as means` to v prevent A,leakage between @the rolls.r

ytestimonywhereof Ivtaiixmy'z signature. y Y i a Y,EDWARJDiS. Kme. 

